Global Patent Index - EP 0634640 A1

EP 0634640 A1 19950118 - Method of counting reticulocytes.

Title (en)

Method of counting reticulocytes.

Title (de)

Verfahren zum Zählen von Reticulozyten.

Title (fr)

Procédé de comptage de réticulocytes.

Publication

EP 0634640 A1 19950118 (EN)

Application

EP 94108238 A 19940527

Priority

JP 12665193 A 19930528

Abstract (en)

Asymmetric cyanine dyes (and their dimers) of generic formula: A-(CH=CH)n-CH=B where A IDENTICAL 3-methyl-benzoxazolium or benzthiazolium iodide, B IDENTICAL 4-(N-trimethylaminopropyl)-pyridinium or quinolinium iodide, and n = 0 or 1 are used as fluorescent stains for staining reticulocytes in flow cytometric. A typical example is the thiazole orange dimer, TOTO-3. By suitable choice of components, the absorption maximum of the dye-RNA complex can be adjusted to allow the use of cheap, compact laser sources, e.g. Hc/Nc or laser diodes.

IPC 1-7

G01N 1/30; C09B 23/02

IPC 8 full level

C09B 23/02 (2006.01); G01N 15/14 (2006.01); G01N 33/80 (2006.01); G01N 1/30 (2006.01)

CPC (source: EP US)

C09B 23/02 (2013.01 - EP US); G01N 15/1456 (2013.01 - EP US); G01N 33/80 (2013.01 - EP US); G01N 2001/302 (2013.01 - EP US); G01N 2021/6439 (2013.01 - EP US); Y10S 436/80 (2013.01 - EP US); Y10T 436/101666 (2015.01 - EP US)

Citation (search report)

  • [XAY] WO 9306482 A1 19930401 - MOLECULAR PROBES INC [US]
  • [YA] US 4883867 A 19891128 - LEE LINDA G [US], et al
  • [DA] US 4325706 A 19820420 - GERSHMAN RUSSELL J, et al
  • [E] US 5321130 A 19940614 - YUE STEPHEN T [US], et al
  • [YA] DATABASE WPI Section Ch Week 9325, Derwent World Patents Index; Class B04, AN 93-199619
  • [A] RYE S R ET AL:: "Stable fluorescent complexes of double-stranded DNA with bis-intercalating asymmetric cyanine dyes: properties and applications", NUCLEIC ACIDS RESEARCH, vol. 20, no. 11, 1992, OXFORD GB, pages 2803 - 2812, XP002911844
  • [PA] DATABASE WPI Section Ch Week 9348, Derwent World Patents Index; Class B02, AN 93-383255

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0634640 A1 19950118; US 5563070 A 19961008

DOCDB simple family (application)

EP 94108238 A 19940527; US 24957694 A 19940526